Table 3.
Disease → Exposure ↓ |
Disease (NEC) Present |
Disease (NEC) Not Present |
Total |
---|---|---|---|
Exposure to formula present (formula feeds) | 5 (a) | 45 (b) | 50 (a + b) |
No exposure to formula (human milk feeds) | 1 (c) | 49 (d) | 50 (c + d) |
Total | 6 (a + c) | 94 (b + d) | 100 (a + b + c + d) |
A 2 × 2 contingency table. NEC=necrotizing enterocolitis.